Tritium in tightly bound form in soils of the Semipalatinsk test site

The current paper presents results of the content of tightly bound ³H in soil at radiation hazardous sites of STS. According to findings a significant amount of ³H was registered both in venues of aboveground and underground nuclear tests. It is found that ³H distribution soil has its features for each site of interest and can depend on a yield and nature of a test conducted.